Slight warming in O.C. after morning clouds

Orange County should see a slight warming trend to wrap up the workweek, with a faster rollback of morning clouds Thursday, the National Weather Service says.

Then we'll shift gears for modest cooling over the weekend as a deeper marine layer extends the morning clouds' reach.

Thursday's and Friday's mild warming is the work of a weak system of high-pressure air moving over the region.

The equally undramatic cooling will arrive with low pressure moving in from the coast by Saturday.

And next week, stronger low pressure could bring further cooling.

Thursday should be partly cloudy in the morning with patchy fog, clearing more rapidly than in recent days to mostly sunny skies. Highs should be 82 to 87 inland, 72 on the coast.

Friday will be mostly cloudy with patchy fog, then mostly sunny and 83 to 88 inland, 73 on the coast.

Saturday also will begin with mostly cloudy skies and patchy fog before turning mostly sunny. Expect highs of 80 to 85 inland, 71 on the coast.

Sunday will be cloudy, then mostly sunny. Highs should be 81 to 86 inland, 71 again at the beach.

Monday through Wednesday should see cloudy mornings and mostly sunny afternoons. Highs could tick back up a bit Monday and Tuesday. That means 82 to 87 inland Monday, 83 to 88 Tuesday; on the coast, it will be 74 Monday, 72 to 77 Tuesday.

On Wednesday that stronger low-pressure system could push highs down into the 78 to 83 range, 70 on the coast, as morning clouds and patchy fog give way to mostly sunny skies.

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